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Question: Assume the two speakers are a distance d = 4m apart and emitting a pure tone with λ = 0.34 m. For D = 12m at what y positions on the vertical line do observers hear the loudest sound? What frequency corresponds to this wavelength?
A tightrope walker who weighs 640 N walks along a steel cable. When he is halfway across, the cable makes an angle of 0.040 rad below the horizontal. What is the cross-sectional area of the cable
A friend in a spaceship travels past you at a high speed. Hetells you that his ship is 24 m long andthat the identical ship you are sitting in is 18 m long. According to your observations, what is the speed of your friend's ship
Starting from rest, a skier slides 100 meter down a 28o slope. How much longer does the run take if the coefficient of kinetic friction is 0.17 instead of 0
A particle moving along the x-axis has its velocity described by the function vx=2t2 m/s, where t is in s. Its initial position is x0 = 1.7m at t0 = 0 s. what is the particle's position
a sealed container contains 8 moles of radon gas at stp. estimate the number of radon atoms having speeds in the range
When a 4.0 µF capacitor is connected to a generator whose rms output is 34 V, the current in the circuit is observed to be 0.40 A
Excited states do not in general live very long before they decay.Suppose a certain excited state lives just 10^-7 s. In that case weknow the time when the atom is in the excited state quiteaccurately--to within ?t=10^-7 s. That means there is a ..
a bird migrating toward its summer nesting site travels 3200 miles in a direction 18deg east of north. how much farther
Lake Erie contains roughly 4.00 X 1011 m3 of water. Find how much energy is required to raise the temperature of that volume of water from 11.0°C to 12.0°C
A 2.0 kg ball moving with a speed of 3.0 m/s hits, elastically, an identical stationary ball as shown. find the speed and direction of the second ball after the collision
question1a photographer in a helicopter ascending vertically at a constant rate of 12.5 ms accidentally drops a camera
At a party,3.00kg of ice at-4.20°C is added to a cooler holding 30 liters of water at 20.0°C. What is the temperature of the water when it comes to equilibrium
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